CVE-2023-42451CWE-706

Mastodon Invalid Domain Name Normalization vulnerability

High · published September 19, 2023

CVSS v3.1
7.4
EPSS
1%
Percentile
51.3
In the wild
Unconfirmed
What it is

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 3.5.14, 4.0.10, 4.1.8, and 4.2.0-rc2, under certain circumstances, attackers can exploit a flaw in domain name normalization to spoof domains they do not own. Versions 3.5.14, 4.0.10, 4.1.8, and 4.2.0-rc2 contain a patch for this issue.

The record
Technical detail
CVSS v3.1
7.4 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00667 · 51.3th percentile
Weakness
CWE-706 · Use of Incorrectly-Resolved Name or Reference
Published
2023-09-19T15:56Z
EPSS history
Timeline
  • 19 SEP 15:56Z
    Mastodon Invalid Domain Name Normalization vulnerability
    cvelistv5